| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| 0 | 25 |
18.5%
|
|
| 1 | 43 |
31.9%
|
|
| 2 | 52 |
38.5%
|
|
| 3 | 13 |
9.6%
|
|
| 4 | 1 |
0.7%
|
|
| 6 | 1 |
0.7%
|